* {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: #242424;
}


/* ---- 通用部件 ---- */
body {
    background-color: #dfe4ea;
}

header {
    display: flex;
    justify-content: space-between;
    margin: 0 16%;
    padding: 8px 0;
}

main {
    margin: 0 16%;
    padding: 48px;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 48px 48px -24px rgba(24, 24, 24, .16);
}

footer {
    margin: 4% 16%;
    padding: 48px;
    text-align: center;
    border-radius: 16px;
    background: #F7F9FA;
}


/* ---- 通用标签 ---- */
li {
    list-style: none;
}

a {
    text-decoration: none;
}

h1 {
    font-size: 2em;
    font-weight: 600;
}

h2 {
    font-size: 1.5em;
    font-weight: 400;
}

h3 {
    font-size: 1.2em;
    font-weight: 600;
}